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Design principles for intrinsically circular polymers with tunable properties
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“the complete depolymerization back to monomer maximizes the number of chemical bonds that must be broken and reformed during the recycling process, necessitating extreme reaction efficiency and increased energy inputs”
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Citations
Cites
Production, use, and fate of all plastics ever made
Geyer, R., Jambeck, J. R., & Law, K. L. (2017) · Science Advances · doi:10.1126/sciadv.1700782 · Cited by 18,606
Plastic waste inputs from land into the ocean
Jambeck, J. R., Geyer, R., Wilcox, C., Siegler, T. R., Perryman, M., Andrady, A., Narayan, R., & Law, K. L. (2015) · Science · doi:10.1126/science.1260352 · Cited by 13,163
Predicted growth in plastic waste exceeds efforts to mitigate plastic pollution
Borrelle, S. B., Ringma, J., Law, K. L., Monnahan, C. C., Lebreton, L., McGivern, A., Murphy, E., Jambeck, J., Leonard, G. H., Hilleary, M. A., et al. (2020) · Science · doi:10.1126/science.aba3656 · Cited by 3,219
Sustainable polymers from renewable resources
Zhu, Y., Romain, C., & Williams, C. K. (2016) · Nature · doi:10.1038/nature21001 · Cited by 2,762
Rebitzer, G., Ekvall, T., Frischknecht, R., Hunkeler, D., Norris, G., Rydberg, T., Schmidt, W.-P., Suh, S., Weidema, B. P., & Pennington, D. W. (2004) · Environment International · doi:10.1016/j.envint.2003.11.005 · Cited by 2,753
Chemical recycling of waste plastics for new materials production
Rahimi, A., & Garcı́a, J. M. (2017) · Nature Reviews Chemistry · doi:10.1038/s41570-017-0046 · Cited by 2,148
Chemical recycling to monomer for an ideal, circular polymer economy
Coates, G. W., & Getzler, Y. D. Y. L. (2020) · Nature Reviews Materials · doi:10.1038/s41578-020-0190-4 · Cited by 1,644
Emerging approaches, challenges and opportunities in life cycle assessment
Hellweg, S., & Canals, L. M. I. (2014) · Science · doi:10.1126/science.1248361 · Cited by 1,530
Strategies to reduce the global carbon footprint of plastics
Zheng, J., & Suh, S. (2019) · Nature Climate Change · doi:10.1038/s41558-019-0459-z · Cited by 1,356
Chemical and biological catalysis for plastics recycling and upcycling
Ellis, L. D., Rorrer, N. A., Sullivan, K. P., Otto, M., McGeehan, J. E., Román‐Leshkov, Y., Wierckx, N. J. P., & Beckham, G. T. (2021) · Nature Catalysis · doi:10.1038/s41929-021-00648-4 · Cited by 1,245
Self-citationCircular economy indicators: What do they measure?
Moraga, G., Huysveld, S., Mathieux, F., Blengini, G. A., Alaerts, L., Acker, K. V., Meester, S. D., & Dewulf, J. P. (2019) · Resources Conservation and Recycling · doi:10.1016/j.resconrec.2019.03.045 · Cited by 1,190
Life Cycle Assessment: Theory and Practice
(2018) · doi:10.1007/978-3-319-56475-3 · Cited by 1,073
50th Anniversary Perspective : There Is a Great Future in Sustainable Polymers
Schneiderman, D. K., & Hillmyer, M. A. (2017) · Macromolecules · doi:10.1021/acs.macromol.7b00293 · Cited by 1,022
Corona, B., Shen, L., Reike, D., Rosales Carreón, J., & Worrell, E. (2019) · Resources, Conservation and Recycling · doi:10.1016/j.resconrec.2019.104498 · Cited by 987
Catalysis as an Enabling Science for Sustainable Polymers
Zhang, X., Fevre, M., Jones, G. O., & Waymouth, R. M. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.7b00329 · Cited by 936
Polyethylene upcycling to long-chain alkylaromatics by tandem hydrogenolysis/aromatization
Zhang, F., Zeng, M., Yappert, R. D., Sun, J., Lee, Y.-H., LaPointe, A. M., Peters, B., Abu-Omar, M. M., & Scott, S. L. (2020) · Science · doi:10.1126/science.abc5441 · Cited by 882
Chemically recyclable polymers: a circular economy approach to sustainability
Hong, M., & Chen, E. Y.-X. (2017) · Green Chemistry · doi:10.1039/c7gc01496a · Cited by 876
Self-citationClosed-loop recycling of polyethylene-like materials
Häußler, M., Eck, M., Rothauer, D., & Mecking, S. (2021) · Nature · doi:10.1038/s41586-020-03149-9 · Cited by 753
Dogu, O., Pelucchi, M., de Vijver, R. V., Steenberge, P. H. M. V., D’hooge, D., Cuoci, A., Mehl, M., Frassoldati, A., Faravelli, T., & Geem, K. M. V. (2021) · Progress in Energy and Combustion Science · doi:10.1016/j.pecs.2020.100901 · Cited by 729
A synthetic polymer system with repeatable chemical recyclability
Zhu, J.-B., Watson, E. M., Tang, J., & Chen, E. Y.-X. (2018) · Science · doi:10.1126/science.aar5498 · Cited by 709
Self-citationHong, M., & Chen, E. Y.-X. (2016) · Nature Chemistry · doi:10.1038/nchem.2391 · Cited by 677
Self-citationUpcycling Single-Use Polyethylene into High-Quality Liquid Products
Celik, G., Kennedy, R. M., Hackler, R. A., Ferrandon, M. S., Tennakoon, A., Patnaik, S., LaPointe, A. M., Ammal, S. C., Heyden, A., Perras, F. A., et al. (2019) · ACS Central Science · doi:10.1021/acscentsci.9b00722 · Cited by 562
Handbook of Ring‐Opening Polymerization
(2009) · doi:10.1002/9783527628407 · Cited by 544
Catalytic upcycling of high-density polyethylene via a processive mechanism
Tennakoon, A., Wu, X. W., Paterson, A. L., Patnaik, S., Pei, Y., LaPointe, A. M., Ammal, S. C., Hackler, R. A., Heyden, A., Slowing, I. I., et al. (2020) · Nature Catalysis · doi:10.1038/s41929-020-00519-4 · Cited by 528
Chemically recyclable thermoplastics from reversible-deactivation polymerization of cyclic acetals
Abel, B. A., Snyder, R. L., & Coates, G. W. (2021) · Science · doi:10.1126/science.abh0626 · Cited by 483
Singh, A., Rorrer, N. A., Nicholson, S. R., Erickson, E., DesVeaux, J. S., Avelino, A. F. T., Lamers, P., Bhatt, A. H., Zhang, Y., Avery, G., et al. (2021) · Joule · doi:10.1016/j.joule.2021.06.015 · Cited by 464
Self-citationPackaging materials with desired mechanical and barrier properties and full chemical recyclability
Sangroniz, A., Zhu, J., Tang, X., Etxeberria, A., Chen, E. Y. ‐., & Sardón, H. (2019) · Nature Communications · doi:10.1038/s41467-019-11525-x · Cited by 460
Self-citationManufacturing energy and greenhouse gas emissions associated with plastics consumption
Nicholson, S. R., Rorrer, N. A., Carpenter, A. C., & Beckham, G. T. (2021) · Joule · doi:10.1016/j.joule.2020.12.027 · Cited by 421
Self-citationConversion of Polyolefin Waste to Liquid Alkanes with Ru-Based Catalysts under Mild Conditions
Rorrer, J. E., Beckham, G. T., & Román‐Leshkov, Y. (2020) · JACS Au · doi:10.1021/jacsau.0c00041 · Cited by 413
Self-citationToward Infinitely Recyclable Plastics Derived from Renewable Cyclic Esters
Tang, X., & Chen, E. Y. ‐. (2018) · Chem · doi:10.1016/j.chempr.2018.10.011 · Cited by 395
Self-citationA systems thinking approach to understanding the challenges of achieving the circular economy
Iacovidou, E., Hahladakis, J. Ν., & Purnell, P. (2020) · Environmental Science and Pollution Research · doi:10.1007/s11356-020-11725-9 · Cited by 387
Herrmann, I. T., & Moltesen, A. (2014) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2014.08.004 · Cited by 385
The promise of plastics from plants
Hillmyer, M. A. (2017) · Science · doi:10.1126/science.aao6711 · Cited by 381
Sagi, A., Weinstain, R., Karton-Lifshin, N., & Shabat, D. (2008) · Journal of the American Chemical Society · doi:10.1021/ja801065d · Cited by 369
Albertsson, A.-C., & Hakkarainen, M. (2017) · Science · doi:10.1126/science.aap8115 · Cited by 344
Combining Reclaimed PET with Bio-based Monomers Enables Plastics Upcycling
Rorrer, N. A., Nicholson, S., Carpenter, A. C., Biddy, M. J., Grundl, N. J., & Beckham, G. T. (2019) · Joule · doi:10.1016/j.joule.2019.01.018 · Cited by 333
Self-citationYuan, J., Xiong, W. H., Zhou, X., Zhang, Y., Shi, D., Li, Z., & Lu, H. (2019) · Journal of the American Chemical Society · doi:10.1021/jacs.9b00031 · Cited by 320
Worch, J. C., & Dove, A. P. (2020) · ACS Macro Letters · doi:10.1021/acsmacrolett.0c00582 · Cited by 309
Aliphatic Polyester Block Polymer Design
Schneiderman, D. K., & Hillmyer, M. A. (2016) · Macromolecules · doi:10.1021/acs.macromol.6b00211 · Cited by 290
Olefin metathesis-based chemically recyclable polymers enabled by fused-ring monomers
Sathe, D., Zhou, J., Chen, H., Su, H., Xie, W., Hsu, T., Schrage, B. R., Smith, T., Ziegler, C. J., & Wang, J. (2021) · Nature Chemistry · doi:10.1038/s41557-021-00748-5 · Cited by 255
Future Directions for Sustainable Polymers
Hong, M., & Chen, E. Y. ‐. (2019) · Trends in Chemistry · doi:10.1016/j.trechm.2019.03.004 · Cited by 250
Self-citationMechanically triggered heterolytic unzipping of a low-ceiling-temperature polymer
Diesendruck, C. E., Peterson, G. I., Kulik, H. J., Kaitz, J. A., Mar, B. D., May, P. A., White, S. R., Martı́nez, T. J., Boydston, A. J., & Moore, J. S. (2014) · Nature Chemistry · doi:10.1038/nchem.1938 · Cited by 246
Thermodynamic Presynthetic Considerations for Ring-Opening Polymerization
Olsén, P., Odelius, K., & Albertsson, A.-C. (2016) · Biomacromolecules · doi:10.1021/acs.biomac.5b01698 · Cited by 244
Controlled Depolymerization: Stimuli-Responsive Self-Immolative Polymers
Peterson, G. I., Larsen, M. B., & Boydston, A. J. (2012) · Macromolecules · doi:10.1021/ma300817v · Cited by 223
Xiong, W. H., Chang, W.-Y., Shi, D., Yang, L., Tian, Z., Wang, H., Zhang, Z., Zhou, X., Chen, E., & Lu, H. (2020) · Chem · doi:10.1016/j.chempr.2020.06.003 · Cited by 214
Self-citationInnovative Chemicals and Materials from Bacterial Aromatic Catabolic Pathways
Johnson, C. W., Salvachúa, D., Rorrer, N. A., Black, B. A., Vardon, D. R., John, P. C. S., Cleveland, N. S., Dominick, G., Elmore, J. R., Grundl, N. J., et al. (2019) · Joule · doi:10.1016/j.joule.2019.05.011 · Cited by 212
Self-citationHigh-performance pan-tactic polythioesters with intrinsic crystallinity and chemical recyclability
Shi, C., McGraw, M. L., Li, Z., Cavallo, L., Falivene, L., & Chen, E. Y. ‐. (2020) · Science Advances · doi:10.1126/sciadv.abc0495 · Cited by 211
Self-citationFeist, J. D., & Xia, Y. P. (2019) · Journal of the American Chemical Society · doi:10.1021/jacs.9b11834 · Cited by 210
Dainton, F. S., & Ivin, K. J. (1948) · Nature · doi:10.1038/162705a0 · Cited by 208
Davis, R. E., Bioenergy Technologies Office (EE-3B) USDOE Office of Energy Efficiency and Renewable Energy (EERE), Grundl, N. J., Tao, L., Biddy, M., Tan, E. C. D., Beckham, G. T., Thompson, D. N., Thompson, D., & Roni, M. (2018) · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · doi:10.2172/1483234 · Cited by 201
Self-citationWalzberg, J., Lonca, G., Hanes, R. J., Eberle, A. L., Carpenter, A. C., & Heath, G. A. (2021) · Frontiers in Sustainability · doi:10.3389/frsus.2020.620047 · Cited by 186
Tang, X., Hong, M., Falivene, L., Caporaso, L., Cavallo, L., & Chen, E. Y.-X. (2016) · Journal of the American Chemical Society · doi:10.1021/jacs.6b07974 · Cited by 179
Self-citationCortes-Pena, Y. R., Kumar, D., Singh, V., & Guest, J. S. (2020) · ACS Sustainable Chemistry & Engineering · doi:10.1021/acssuschemeng.9b07040 · Cited by 174
Ceiling temperature of α‐methylstyrene
McCormick, H. W. (1957) · Journal of Polymer Science · doi:10.1002/pol.1957.1202511112 · Cited by 166
Shi, C., Li, Z.-C., Caporaso, L., Cavallo, L., Falivene, L., & Chen, E. Y. ‐. (2021) · Chem · doi:10.1016/j.chempr.2021.02.003 · Cited by 161
Self-citationBiddy, M. J., Davis, R., Humbird, D., Tao, L., Dowe, N., Guarnieri, M. T., Linger, J. G., Karp, E. M., Salvachúa, D., Vardon, D. R., et al. (2016) · ACS Sustainable Chemistry & Engineering · doi:10.1021/acssuschemeng.6b00243 · Cited by 159
Self-citationPatterned Plastics That Change Physical Structure in Response to Applied Chemical Signals
Seo, W., & Phillips, S. T. (2010) · Journal of the American Chemical Society · doi:10.1021/ja104420k · Cited by 158
Zhu, J., & Chen, E. Y. ‐. (2018) · Angewandte Chemie International Edition · doi:10.1002/anie.201808003 · Cited by 152
Self-citationMacDonald, J. P., & Shaver, M. P. (2016) · Polymer Chemistry · doi:10.1039/c5py01606a · Cited by 146
Triggering Depolymerization: Progress and Opportunities for Self-Immolative Polymers
Yardley, R. E., Kenaree, A. R., & Gillies, E. R. (2019) · Macromolecules · doi:10.1021/acs.macromol.9b00965 · Cited by 144
Nicholson, A. L., Olivetti, E., Gregory, J. R., Field, F. R., & Kirchain, R. (2009) · IEEE International Symposium on Sustainable Systems and Technology · doi:10.1109/issst.2009.5156769 · Cited by 131
Thermodynamics and Kinetics of Ring‐Opening Polymerization
Duda, A., & Kowalski, A. (2009) · doi:10.1002/9783527628407.ch1 · Cited by 128
Penczek, S., & Moad, G. (2008) · Pure and Applied Chemistry · doi:10.1351/pac200880102163 · Cited by 123
Chemical Process Design and Simulation: Aspen Plus and Aspen Hysys Applications
Haydary, J. (2019) · Cited by 119
Depolymerization of Bottlebrush Polypentenamers and Their Macromolecular Metamorphosis
Neary, W. J., Isais, T. A., & Kennemur, J. G. (2019) · Journal of the American Chemical Society · doi:10.1021/jacs.9b05560 · Cited by 112
Zhu, J., & Chen, E. Y. ‐. (2018) · Angewandte Chemie International Edition · doi:10.1002/anie.201813006 · Cited by 102
Self-citationLife Cycle Assessment for the Design of Chemical Processes, Products, and Supply Chains
Kleinekorte, J., Fleitmann, L., Bachmann, M., Kätelhön, A., Barbosa‐Póvoa, A. P., von der Assen, N. V., & Bardow, A. (2020) · Annual Review of Chemical and Biomolecular Engineering · doi:10.1146/annurev-chembioeng-011520-075844 · Cited by 102
Anionic ring-opening polymerization of thiolactones
Overberger, C. G., & Weise, J. K. (1968) · Journal of the American Chemical Society · doi:10.1021/ja01015a043 · Cited by 100
Insight into Polyethylene and Polypropylene Pyrolysis: Global and Mechanistic Models
Harmon, R. E., SriBala, G., Broadbelt, L. J., & Burnham, A. K. (2021) · Energy & Fuels · doi:10.1021/acs.energyfuels.1c00342 · Cited by 99
Self-citationC−O and C−S Bonds: Stability, Bond Dissociation Energies, and Resonance Stabilization
Hadad, C. M., Rablen, P. R., & Wiberg, K. B. (1998) · The Journal of Organic Chemistry · doi:10.1021/jo972180+ · Cited by 95
Hong, M., Tang, X., Newell, B., & Chen, E. Y. ‐. (2017) · Macromolecules · doi:10.1021/acs.macromol.7b02174 · Cited by 88
Self-citationShi, C., Guo, Y.-T., Wu, Y., Li, Z.-Y., Wang, Y.-Z., Du, F., & Li, Z. (2019) · Macromolecules · doi:10.1021/acs.macromol.8b02498 · Cited by 78
Self-citationSummary of Expansions and Updates in GREET® 2020
Wang, M., Bioenergy Technologies Office (BETO) USDOE Office of Energy Efficiency and Renewable Energy (EERE), Lee, U., et al. (2020) · doi:10.2172/1671788 · Cited by 58
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Wang, L., & Broadbelt, L. J. (2010) · Macromolecular Theory and Simulations · doi:10.1002/mats.201000041 · Cited by 51
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High chemical recyclability of vinyl lactone acrylic bioplastics
Gilsdorf, R. A., Nicki, M. A., & Chen, E. Y. ‐. (2020) · Polymer Chemistry · doi:10.1039/d0py00786b · Cited by 44
Self-citationVinu, R., Levine, S. E., Wang, L., & Broadbelt, L. J. (2011) · Chemical Engineering Science · doi:10.1016/j.ces.2011.10.071 · Cited by 41
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Horton, S. R., Woeckener, J., Mohr, R., Zhang, Y., Petrocelli, F. P., & Klein, M. T. (2015) · Energy & Fuels · doi:10.1021/acs.energyfuels.5b02047 · Cited by 40
Tang, J., & Chen, E. Y. ‐. (2018) · Journal of Polymer Science Part A Polymer Chemistry · doi:10.1002/pola.29180 · Cited by 34
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Kikuchi, H., Tsubokawa, N., & Endo, T. (2005) · Chemistry Letters · doi:10.1246/cl.2005.376 · Cited by 30
Evaluating opportunities to improve material and energy impacts in commodity supply chains
Hanes, R. J., & Carpenter, A. C. (2017) · Environment Systems & Decisions · doi:10.1007/s10669-016-9622-5 · Cited by 28
Delgove, M. A. F., Wróblewska, A. A., Stouten, J., van Slagmaat, C. A. M. R., Noordijk, J., Wildeman, S. M. A. D., & Bernaerts, K. V. (2020) · Polymer Chemistry · doi:10.1039/c9py01777a · Cited by 20
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Iacovidou, E., Geyer, R., Kalow, J. A., Palardy, J. E., Dunn, J. B., Hoellein, T. J., Xiong, B., & Chen, E. Y. ‐. (2021) · One Earth · doi:10.1016/j.oneear.2021.04.023 · Cited by 19
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Sullivan, K. P., Werner, A. Z., Ramirez, K. J., Ellis, L. D., Bussard, J. R., Black, B. A., Brandner, D. G., Bratti, F., Buss, B. L., Dong, X., et al. (2022) · Science · doi:10.1126/science.abo4626 · Cited by 640
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Clarke, R. W., Sandmeier, T., Franklin, K. A., Reich, D., Zhang, X., Vengallur, N., Patra, T. K., Tannenbaum, R. J., Adhikari, S., Kumar, S. K., et al. (2023) · Nature · doi:10.1038/s41586-023-05858-3 · Cited by 258
Self-citationZhang, Z., Lei, D., Zhang, C., Wang, Z., Jin, Y., Zhang, W., Liu, X., & Sun, J. (2022) · Advanced Materials · doi:10.1002/adma.202208619 · Cited by 224
Metadata
- Authors
- Shi, C., Reilly, L. T., Phani Kumar, V. S., Coile, M. W., Nicholson, S. R., Broadbelt, L. J., Beckham, G. T., & Chen, E. Y.-X.
- Affiliations
- Colorado State University (US)
- Northwestern University (US)
- National Laboratory of the Rockies (US)
- Corresponding author
- Broadbelt, Linda J.
- Beckham, Gregg T.
- Chen, Eugene Y.-X.
- ORCID
- Venue
- Chem
- Publisher
- Elsevier BV
- Published
- 2021-11
- Volume
- 7
- Issue
- 11
- Pages
- 2896-2912
- ISSN
- 2451-9294 (ISSN-L)
- OpenAlex
- W3209227621
- Cited by
- 219
- References
- 82
- Citations by year
- 2026: 36 · 2025: 62 · 2024: 49 · 2023: 45 · 2022: 26 · 2021: 1
- FWCI
- 7.78
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Chem (publishedVersion)
- OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
- Funders
- Bioenergy Technologies Office (DE-AC36-08GO28308)
- Advanced Manufacturing Office
- Office of Energy Efficiency and Renewable Energy
- U.S. Department of Energy
- National Renewable Energy Laboratory
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
- Keywords
- kinetic trapping, depolymerization, thermodynamics and kinetics, predictive modeling, life cycle assessment, techno-economic analysis, sustainable polymers
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